/*
 * Copyright 2010 Yannick Stucki (yannickstucki.com)
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.yannickstucki.android.musicqueue.communication;

/**
 * Interface that listens to drag events from the DragView.
 * 
 * @author Yannick Stucki (yannickstucki@gmail.com)
 * 
 * @param <T>
 *          The same T as the DragView has in its generic parameter.
 */
public interface OnDragListener<T> {

  /**
   * The top element of the view has changed.
   */
  void onTopElementChanged();

  /**
   * An item has been removed.
   */
  void onElementRemoved();
}
